Birkeland fracture in horses: waiting period and costs

A Birkeland fracture usually calls for prompt arthroscopy, and the cost can run into several thousand euros. The Barmenia horse surgery policy reimburses the procedure, provided the special waiting period of 12 months has been met.

What is a Birkeland fracture in a horse?

A Birkeland fracture is the avulsion of a small cartilage-and-bone fragment at the back (palmar or plantar) upper margin of the pastern bone, in the area between the sesamoid bones and the insertion of the distal oblique sesamoidean ligaments — that is, inside the fetlock joint; the finding is described predominantly in the hind limbs. Unlike a classic fracture, it does not break the weight-bearing long bone through its substance, but shows up as an isolated chip in the joint space. Such fragments typically arise from mechanical overload, microtrauma or a disturbance of ossification during growth.

In insurance terms, a Birkeland fracture therefore sits in the same category as classic joint chips and osteochondrosis dissecans (OCD). That classification matters to affected owners, because policies covering chip surgery group these findings together in their own clause with a special waiting period.

• Where it occurs: most often at the fetlock joint, the sesamoid bones or the flexor joints.
• How it differs from a fracture: not a break through the main bone, but a chipped-off fragment of cartilage and bone.
• Medical classification: treated in the policy conditions in the same way as joint chips and OCD.

Typical symptoms and how the diagnosis is made

A fragment loose in the joint does not always cause acute trouble straight away. Symptoms often stay mild for a long time and amount to little more than increased fluid in the joint; they become conspicuous above all in horses whose joints are heavily loaded and constantly irritated in racing and riding sport. Once the fragment irritates the joint lining, the horse shows shifting lameness, local pain on pressure and windgalls from the extra joint fluid produced.

To confirm the diagnosis, the vet performs a thorough orthopaedic examination including a lameness assessment and diagnostic nerve blocks. What settles it is radiography: a sudden increase in fluid in the hock or fetlock joint (a "gall") should always be investigated on X-ray to judge the position and size of the fragment. A strong surgery policy covers these preliminary examinations, provided they lead directly to the diagnosis on which the operation rests.

• Weight-bearing lameness: often only visible under a rider or on hard ground.
• Windgalls: warm, tightly filled swellings around the fetlock joint.
• Imaging: radiography to locate the detached fragment precisely.

How arthroscopy works and what it costs

A Birkeland fracture is removed today by minimally invasive joint arthroscopy, generally under general anaesthesia. Through two portals about a centimetre across, the surgeon introduces an arthroscope with a camera along with the instruments and removes the loose fragment. The bone and cartilage surfaces are then smoothed and the joint flushed thoroughly, to avoid cartilage damage later on.

What it costs depends on the veterinary billing rate. At the single GOT rate, the arthroscopy alone comes to 551.23 euros. Including anaesthesia, medication, the work-up and the inpatient stay, the total for a straightforward chip operation on one joint runs to 1,000 to 3,500 euros. Where several joints are affected, the chip sits awkwardly or a higher GOT multiple is applied, Allianz quotes a range of 4,000 to 6,200 euros. The two ranges do not contradict each other: one describes the simple procedure, the other the demanding multi-joint case.

Barmenia's 12-month waiting period

Anyone taking out a Barmenia horse surgery policy needs to keep the contractual deadlines for joint procedures in mind. General illness-related surgery carries a waiting period of 3 months and abdominal surgery (colic) only 5 days, but clause 2.2.3.1 sets a special waiting period of 12 months for joint operations involving isolated radiographic shadows, OC, OCD, Birkeland fractures and chips.

The pre-existing condition clause is the critical one: if clinically relevant symptoms are recorded, or a Birkeland fracture is diagnosed, before those 12 months have run, that condition and every consequence of it are permanently outside cover. Insuring early — right after purchase, or while the horse is still a foal — is therefore essential.

• Standard waiting period: 3 months for general illness-related surgery.
• Special waiting period: 12 months for Birkeland fractures, chips and OCD findings.
• Pre-existing conditions: symptoms inside the deadline mean a permanent exclusion.

What is covered: the operation and the aftercare

Once the 12-month waiting period has run, Barmenia's policy covers the veterinarily necessary cost of the operation. That includes the procedure under general or standing anaesthesia, consumables, painkillers and anti-inflammatories. Post-operative wound care is part of the standard cover too.

Cover also extends to the inpatient stay at the equine clinic and to immediate aftercare up to the number of days the policy defines. Comprehensive health policies sometimes carry clinic stays for as long as 15 days after the operation. Owners should always check which aftercare deadline was agreed, so that follow-up costs are reimbursed in full.

• Surgery costs: reimbursed under the scale of fees for veterinary surgeons up to the rate recorded in the policy schedule.
• Clinic stay: accommodation covered for the period fixed in the contract.
• Aftercare: wound care, suture removal and prescribed medication.

Prognosis and rehabilitation after the procedure

Removing a Birkeland fracture arthroscopically carries an excellent prognosis, provided the joint shows no advanced cartilage damage. Rehabilitation as a whole generally runs to 8 to 12 weeks. After the clinic stay comes strict box rest for two to three weeks, to protect the small sutures and the joint capsule.

A gradually increasing exercise programme follows: three to four weeks of controlled walking, with the horse led in walk for 20 to 30 minutes a day. Only once the vet gives the go-ahead again may fitness work slowly resume. As a digital marketplace, nextsure helps owners compare policies transparently and take out dependable surgery cover for the procedures nobody sees coming.